Ingredients
- For the Beef Tenderloin:
- 2 lb beef tenderloin, trimmed and tied
- 1 1/2 tsp fine sea salt
- 1 tsp freshly ground black pepper
- 2 garlic cloves, minced
- 1/2 Tbsp fresh thyme leaves, minced
- 2 Tbsp extra light olive oil
- For the Mushroom Cream Sauce:
- 2 Tbsp unsalted butter
- 1 Tbsp extra light olive oil
- 1/2 cup yellow onion, finely chopped
- 16 oz baby Bella mushrooms, thickly sliced
- 2 garlic cloves, minced
- 1/2 Tbsp fresh thyme leaves, minced (or 1/2 tsp dried thyme)
- 1/2 tsp salt, or to taste
- 1/2 tsp freshly ground black pepper
- 1 cup beef broth
- 1/2 cup heavy whipping cream
Instructions
- Preheat oven to 500°F (260°C) with the rack in the center position. Pat beef tenderloin dry with paper towels.
- Tie the tenderloin with kitchen twine for even cooking.
- In a small bowl, mix garlic, thyme, salt, and pepper. Rub the mixture all over the roast and drizzle with olive oil. Massage into the meat.
- Place tenderloin in an oven-safe roasting pan or heavy skillet. Insert an oven-safe meat thermometer into the thickest part of the meat.
- Roast for 28–30 minutes for medium doneness (135–140°F internal temperature), adjusting for desired doneness.
- Remove the roast when 5–10 degrees below target temp. Tent with foil and rest for 15–20 minutes before slicing.
- While beef rests, heat butter and oil in a large skillet over medium-high heat.
- Add mushrooms and onions; sauté for 5–7 minutes until softened and golden.
- Add garlic, thyme, salt, and pepper; cook 1 minute until fragrant. Transfer mixture to a bowl.
- In the same skillet, pour in beef broth and scrape up browned bits. Boil until reduced by half, about 5–7 minutes.
- Return mushrooms and onions to skillet. Stir in heavy cream; bring to a boil, then reduce heat and simmer 2–3 minutes until slightly thickened. Adjust seasoning.
- Slice the rested beef tenderloin and serve topped with mushroom cream sauce.
Notes
- Let the beef sit at room temperature for 1–2 hours before roasting for even cooking.
- Use a meat thermometer for precise doneness; internal temp continues to rise while resting.
- Swap baby Bella mushrooms for white button or cremini mushrooms if needed.
- The sauce can be prepared ahead and gently reheated before serving.
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Category: Main Dish
- Method: Roasting, Stovetop
- Cuisine: American
- Diet: Kosher
Nutrition
- Serving Size: 1 serving
- Calories: 625
- Sugar: 3g
- Sodium: 520mg
- Fat: 45g
- Saturated Fat: 20g
- Unsaturated Fat: 22g
- Trans Fat: 0g
- Carbohydrates: 6g
- Fiber: 1g
- Protein: 50g
- Cholesterol: 160mg